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Colt1911 [192]
3 years ago
10

If 2x - 5 = 11. what is 3x?

Mathematics
2 answers:
Anna71 [15]3 years ago
4 0

Answer:

24

Step-by-step explanation:

add 5 to both sides to get 2x=16

divide both sides by 2

x=8

3(8)=24

barxatty [35]3 years ago
3 0

Answer:

3x = 24  

Step-by-step explanation:

x = 8  2(8)= 16 16-5 = 11  so 8 x 3 = 24

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Anita burger purchased 14 gallons of gas for $34.72. How much did she pay for each gallon
olga_2 [115]

Step-by-step explanation:

14 gallons bought for $34.72

1 gallon bought for

\frac{34.72}{14}

=$2.48

8 0
2 years ago
What does 2 exponet 4=?
Leno4ka [110]
Hey there!

2^4=2x2x2x2 

2*2=4
4*2=8
8*2=65

It equals 64.

Hope this helps! Let me know if you have any questions:)
7 0
3 years ago
- Which number line represents the solution to the inequality -5x +18> -22 ?
Rufina [12.5K]

Answer:

B

Step-by-step explanation:

the symbol is gonna mean thats is finna be a closed circle, so then B is your only option

3 0
2 years ago
5(x - 1) and 5x - 1<br>is it equivalent ​
suter [353]
No, 5(x-1) expands out to make 5x-5. So 5x-1 and 5x-5 aren’t equivalent.
6 0
2 years ago
Read 2 more answers
Isotope mass (amu) abundance (%) 1 203.97304 1.390 2 205.97447 24.11 3 206.97590 22.09 4 207.97665 52.41 find the atomic mass of
Nata [24]
Answer:
average atomic mass = 207.2172085 amu

Explanation:
To get the average atomic mass of an element using the abundance of its isotopes, all you have to do is multiply each isotope by its percentage of abundance and then sum up all the products.

For the question, we have:
203.97304 amu has an abundance of <span>1.390% (0.0139)
</span>205.97447 amu has an abundance of 24.11% (0.2411)
206.97590 amu has an abundance of 22.09% (0.2209)
207.97665 amu has an abundance of 52.41 % (0.5241)

The average atomic mass can be calculated as follows:
average atomic mass = 203.97304(0.0139) + 205.97447(0.2411)
                                     + 206.97590(0.2209) + 207.97665(0.5241)
average atomic mass = 207.2172085 amu

Hope this helps :)
7 0
3 years ago
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